Power-transmitting device



Sept. 28 1926.

C. ARENS POWER TRANSMITTING DEVICE Filed Jan. 24, 1923 Patented Sept.; 28, R92@ unirse* sir-'airesy CHARLES ARENSh OF COTJLEKSHEA PINT, NEW YORK.

POWER-TRANSMITTING DEVICE.

4 Application filed January 24. 1923. Serial No. 614,573.

This invention relates to a power transniitting device for transmittingV power invan angular direction and it relates more particularlytto a device 'with which torsional, tensile and compressiveforces may be trans-v mitted in an angular direction.

The invention khasI as an object the provision of a device which will be capable of transmitting in an angular direction a torsional force or a: tensile force or a compressive force. A further object is to so arrange the apparatus that it may transmit a. torsional and a tensile force simultaneously or in succession. and also a torsional and a compressive force simultaneously or in succession. A. still ffurther object is to devise ian apparatus which will be capable of transmitting a torsional force in an angular direcf' tion through a fixed' or rigid casing. Other objects will lbe apparent from the following description and claims. l

A preferred embodiment of the invention is shownV in the accompanying drawings in which-' ,i

Figure l represents a section of the device through the ends "1 and the angular turn thereof. and l Figure 2 represents a plan view or an outside view of the entire deviceas assembled.

In' said drawings there is shown an outer casing 1 of rigid material such as iron or brass, and this is bent or formed to extend in an angular direction, as shown, they angle in this case being In the ends of this casing are inserted' tubes 2 and 3 which contain solder` holes 4 for the purpose of inserting'solder and which have screw threads 5 on the ends thereof to hold nuts 6. A flexible cable 7 which may be made of coil wire, is inserted inside of the tubes and the casing l and soldered to the tubes by means of the'solderholes 4. Between the ends of t-he tubes there is inserted a spiral 'spring 8 which is compressed before insertion so as to exert an outward pressure upon the ends y able torsional, tensile and compressive of the tubes 2 and 3.Y

This device may be operatedtotransmit a rotar)7 or torsional force applied at either end of the casing on the members 2 or 3 and in this case this force will be transmitted by; the cable orwire 7, and also by the spring 8 which is preferably attached to the ends of the tubes 2 and 3. When a tensile force is applied on either members 2 or 3 the force is transmitted principally through the cable 7', and whena compressive force is applied on either of the members 2 or 3 `it is transmitted principally through the s'piralspring 8 as the latter, being under compression already. will not need to be compressed to any appreciable degree before transmitting the force. lThe rigid character of the casing 1 enables these operations to be easily conducted as there is no yielding under the strain produced. l

The angle of transmission may be any desired angle from a few degrees up to 180, thus including the special case of a straight line. The casing 1, as before stated, is preferably rigid but` it may also vbe made of i vieldable material for special uses. It is. however. advantageous to have it rigid and it has been so claimed in certain claims. The spiral spring 8 is preferably compressed before insertion and preferably attached to the tubular members.` In cases where it is not desired' to transmit compressive forces this spring might be omitted. The cable 7 ispreferably inserted withinthe tubular members but may' be otherwise attached and is particularly advantageous for transmit ting tensile forces. When transmitting compressive forces this cable 7 might. if so desired, be omitted.

The above described preferred embodiment is particularly advantageous in transmitting torsional. tensile and compressive forces by means of the same instrument and it is so constructed as to simultaneouslyv transmit the torsional and tensile force or the torsional and compressive force... The internal friction inside of tlrcasing may be reduced by oiling so as to present no re' sistaiice to movement of the parts and there are no obstructions to be found inside of the structure which would impede movement. Itwill, therefore, be apparent that this apparatus,- when constructed to contain the` spiral vspring\and the cable within a rigid casing. is capable oftransmitting by suitthe latter case. `When torsional forces are` `applied-both parts will cooperate in transmitting the forces although the spiralspring may be disconnected so that the load is thrown upon the cable if so desired.

Vvvliile I have described my invention above in detail I wish it to be understood that man)Y changes mag7 be made therein without departing trom the spirit ot the same.

I claim:

l. A. power transmitting device Jor transmitting torsional and tensile torce in an angular direction consisting ot a easing ot' angular torm, members within the ends ot the easing, and a flexible connection between said members for transmitting torsional power, the inside ot the casing presenting no obstructions against endwise movement for the transmission ottensile torce when a torsional 'force is applied to one of the said members.

2. A power transmitting device for transmitting torsional and tensile Jforce in an angular direction consistingof a rigid casing ot' angular form, members within the ends of the casing, and a. flexible cable between said members for transmitting torsional and tensile force.

3. A power transmitting device for transmitting torsional and tensile force in an angular direction consisting of a rigid casing of angular form, members within the ends ot the casing, and a flexible cable between said members for transmitting torsional and tensileforce inside of the casing the latter presenting no obstructions to endwise movement when a tensile torce is applied to one of the said members.

4. A power transmitting device for transmitting torsional and tensile force in an angular direction consisting ot a rigid casing of angular form, members within the ends of the casing, a flexible connection between said members for transmitting a torsional and tensile force, the inside of the casing presenting no obstructions to endwise movement when a tensile force is applied to one o the members.

A power transmitting device for transmitting power in an angular direction consisting of a casing of angular form, mov able members within the ends of the casing` a, iiexible connection between said members for transmitting torsional power, the inside ot the casing presenting no obstructions to endwise movement when a tensile i'orce is applied to one ol the said members, and a spiral spring between the ends of the members for transmitting a compressive force.

6. A power transmittingr device for transmitting power in an angular direction consisting oi a casing of angular iorm, mov able members within the ends of the casing, a flexible connection between said members for transmitting torsional power, and a spiral spring between the ends of the membeis for transmitting a. compressive force.

T. A power transmitting device for transmitting power in an angular direction consisting otl a rigid casing of angular form,l movable tubular members within the ends otl the casing, a flexible cable joining said members, a compressed spiral spring aromi-.l said cable and fastened inside the tubular members, said casing presenting no obstructions to longitudinal movement, whereby there may be transmitted from one of said members either a torsional, tensile or compressive force.

8. A power transmitting device for transmitting power in an angular direction con-- sisting of a rigid casing ot angular form, movable members within the ends of the casing, and a spiral spring attached to the ends of the members, designed to transmit a compressive force.

In testimony that I claim the foregoing, I have hereunto set my hand this 8th day oi December, 1922.

A CHARLES ARENS.

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